#include <stdio.h>
#include <math.h>
struct Point {
	double x, y;
};
Point circle(Point &a, Point &b, Point &c) {
	static Point ab, ac, o;
	static double a1, b1, c1, a2, b2, c2, D, D1, D2;
	ab.x = (a.x+b.x)/2, ab.y = (a.y+b.y)/2;
	ac.x = (a.x+c.x)/2, ac.y = (a.y+c.y)/2;
	a1 = a.x-b.x, b1 = a.y-b.y;
	c1 = a1*ab.x + b1*ab.y;
	a2 = a.x-c.x, b2 = a.y-c.y;
	c2 = a2*ac.x + b2*ac.y;
	D = a1*b2-a2*b1;
	D1 = c1*b2-c2*b1;
	D2 = a1*c2-a2*c1;
	o.x = D1/D;
	o.y = D2/D;
	return o;
}
int main() {
	Point a, b, c;
	while(scanf("%lf %lf", &a.x, &a.y) == 2) {
		scanf("%lf %lf", &b.x, &b.y);
		scanf("%lf %lf", &c.x, &c.y);
		Point o = circle(a, b, c);
		double r2 = (a.x-o.x)*(a.x-o.x)+(a.y-o.y)*(a.y-o.y);
		char c1, c2, c3;
		if(o.x >= 0)    c1 = '-';
		else    c1 = '+';
		if(o.y >= 0)    c2 = '-';
		else    c2 = '+';
		if(r2-o.x*o.x-o.y*o.y >= 0)
			c3 = '-';
		else    c3 = '+';
		printf("(x %c %.3lf)^2 + (y %c %.3lf)^2 = %.3lf^2\n", c1, fabs(o.x), c2, fabs(o.y), sqrt(r2));
		printf("x^2 + y^2 %c %.3lfx %c %.3lfy %c %.3lf = 0\n", c1, fabs(2*o.x), c2, fabs(2*o.y), c3, fabs(r2-o.x*o.x-o.y*o.y));
		puts("");
	}
	return 0;
}